Find the cubes of :

(i) -3 (ii) -7 (iii) -12

(iv) -12 (v) -18 (vi) -25

(vii) -50

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Solution

$(i) - 3 = (- 3)^{3} = - 3 \times - 3 \times - 3 = - (3 \times 3 \times 3) = - 27 (i i) - 7 = (- 7)^{3} = - 7 \times - 7 \times - 7 = - (7 \times 7 \times 7) = - 343 (i i i) - 12 = (- 12)^{3} = - 12 \times - 12 \times - 12 = - (12 \times 12 \times 12) = - 1728 (i v) - 18 = (- 18)^{3} = - 18 \times - 18 \times - 18 = - (18 \times 18 \times 18) = - 5832 (v i) - 25 = (- 25)^{3} = - 25 \times - 25 \times - 25 = - (25 \times 25 \times 25) = - 15625 (v i) - 30 = (- 30)^{3} = - 30 \times - 30 \times - 30 = - (30 \times 30 \times 30) = - 27000 (v i i) - 50 = (- 50)^{3} = - 50 \times - 50 \times - 50 = - (50 \times 50 \times 50) = - 125000$

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Find the cubes of : (i) -3 (ii) -7 (iii) -12 (iv) -12 (v) -18 (vi) -25 (vii) -50

Find the cubes of :

(i) -3 (ii) -7 (iii) -12

(iv) -12 (v) -18 (vi) -25

(vii) -50